National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

64°F

18°C

Humidity 68%
Wind Speed N 10 mph
Barometer 30.16 in (1021.1 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 3 Oct 5:54 am EDT
Extended Forecast for

3 Miles SW Williamstown NJ

  • Overnight

    Overnight: A chance of showers. Cloudy, with a low around 59. North wind around 5 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Saturday

    Saturday: Cloudy, with a high near 71. Northeast wind around 5 mph.

    High: 71 °F

    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 66. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 2am. Cloudy, with a low around 57. Calm wind. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers. Cloudy, with a low around 59. North wind around 5 mph. Chance of precipitation is 30%.
Saturday
Cloudy, with a high near 71. Northeast wind around 5 mph.
Saturday Night
Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm.
Sunday
Showers, mainly after 2pm. High near 66. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers before 2am. Cloudy, with a low around 57. Calm wind. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Mostly sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Williamstown NJ
 39.65°N 75.01°W (Elev. 118 ft)
Last Update:
4:09 am EDT Oct 3, 2026
Forecast Valid:
5am EDT Oct 3, 2026-6pm EDT Oct 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation